Proxy credential disclosure via retained redirect header
Published Feb 16, 2024 · Updated Feb 13, 2025
Information disclosure in Node.js Undici 5.28.2 and earlier and 6.0.0 through 6.6.0 allows remote attackers to receive proxy credentials. During httpRedirectFetch, lib/fetch/index.js deletes other sensitive headers but retains Proxy-Authorization when a response redirects to another origin. Exploitation requires a credential-bearing fetch and an attacker-controlled cross-origin redirect, which discloses the header to the redirect destination.
Summary
What happened
Information disclosure in Node.js Undici 5.28.2 and earlier and 6.0.0 through 6.6.0 allows remote attackers to receive proxy credentials. During httpRedirectFetch, lib/fetch/index.js deletes other sensitive headers but retains Proxy-Authorization when a response redirects to another origin. Exploitation requires a credential-bearing fetch and an attacker-controlled cross-origin redirect, which discloses the header to the redirect destination.
The record
- CVE
- CVE-2024-24758
- Published
- Feb 16, 2024
- Updated
- Feb 13, 2025
- Vendor
- Node.js
- Product
- Undici
- Classifications
- CWE-200
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Feb 16, 2024CVE publishedPublication date reported by the CVE source.
- Feb 13, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 5.28.3
- Affected versionversion=>= 6.0.0, < 6.6.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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